Novel Techniques for Musculoskeletal Pain Management after Orthopedic Surgical Procedures: A Systematic Review

Effective postoperative pain management is critical for recovery after orthopedic surgery, but often remains inadequate despite multimodal analgesia. This systematic review synthesizes evidence on innovative modalities for enhancing pain control following major orthopedic procedures. Fifteen randomized controlled trials and comparative studies evaluating peripheral nerve blocks, local anesthetic infiltration, cryotherapy, transcutaneous electrical stimulation, adjunct medications, and other techniques are included. Thematic analysis reveals that peripheral nerve blocks and local anesthetic infiltration consistently demonstrate reduced pain scores, opioid consumption, and side effects versus conventional analgesia alone. Oral multimodal medications also show promise as part of opioid-sparing regimens. Adjunctive approaches like cryotherapy, music, and dexmedetomidine require further research to optimize protocols. Despite promising innovations, critical knowledge gaps persist regarding comparative effectiveness, optimal interventions and dosing, combination strategies, cost-effectiveness, and implementation. High-quality randomized controlled trials using standardized protocols are essential to guide the translation of enhanced multimodal regimens into clinical practice. This review provides a framework for pursuing research priorities and advancing evidence-based postoperative pain management across orthopedic surgeries.


Introduction
Musculoskeletal pain following surgical procedures is a complex and multifaceted experience that encompasses discomfort, soreness, and functional limitations in the muscles, bones, joints, ligaments, and tendons [1].Postoperative musculoskeletal pain arises as a result of tissue trauma, surgical manipulation, inflammation, and nerve sensitization [2].This type of pain can significantly impact a patient's recovery process, influencing mobility, rehabilitation progress, and overall quality of life [3].The intensity and duration of musculoskeletal pain post-operation can vary widely depending on various factors, such as the type of surgery performed, individual pain thresholds, pre-existing musculoskeletal conditions, and the effectiveness of pain management strategies employed during and after the procedure [4,5].
Effective musculoskeletal pain management is crucial for patient recovery and satisfaction after orthopedic surgical procedures.Despite advances in multimodal analgesia, acute postoperative pain continues to be inadequately managed, with up to 80% of patients reporting moderate to severe pain after surgery [6].Uncontrolled acute pain can lead to chronic pain syndromes, delayed recovery and rehabilitation, extended hospital stays, and increased healthcare costs [7,8].Opioids have traditionally been a mainstay for postoperative pain control, but concerns around side effects, misuse potential, and the ongoing opioid epidemic have led to a critical need to optimize non-opioid analgesic options [9].As such, investigation into innovative techniques for perioperative pain management has intensified over the past decade.
Peripheral nerve blocks, local anesthetic infiltrations, cryotherapy, transcutaneous electrical nerve stimulation (TENS), and adjunct medications represent promising modalities to enhance pain relief, promote functional recovery, and reduce opioid requirements across various orthopedic procedures [10,11].Yet the real-world implementation of these techniques faces barriers around provider training, appropriate patient selection, the timing of administration, cost-effectiveness, and standardized protocols [12,13].Further research through robust clinical trials is required to firmly establish optimal treatment regimens, demonstrate definitive advantages over current standards of care, and translate the findings into widespread changes to orthopedic practice.
In the postoperative period after total hip and knee arthroplasties, severe pain is reported in over 60% of patients, and inadequately controlled pain delays functional recovery [14][15][16][17].Both procedures are increasing in frequency with the aging population, making it crucial to optimize pain management and rehabilitation [18][19][20].While femoral nerve blocks are a recommended component, they only cover the anterior knee and have a limited duration; thus, more comprehensive approaches are needed [21][22][23][24].After shoulder arthroplasty, severe pain occurs in 80% of patients [25,26].Effective analgesia balancing early motion and comfort remains a challenge.For trauma procedures, up to 30% of fractures undergo open reduction internal fixation; uncontrolled pain after these surgeries can impede early mobilization and predispose patients to chronic pain [27][28][29][30].
Multimodal techniques including peripheral nerve blocks, local infiltrations, cryotherapy, transcutaneous electrical nerve stimulation, and adjunct medications may offer advantages in efficacy, opioid-sparing effects, and improved functional outcomes across this spectrum of surgeries [31,32].Peripheral nerve blocks act via temporary anesthesia of the relevant nerves supplying the surgical site.Local anesthetic infiltrations directly deliver analgesia into the wound [33].Cryotherapy limits inflammation and swelling.Transcutaneous electrical nerve stimulation (TENS) stimulates nerve fibers to close the pain gate [34].Adjunct agents like gabapentinoids and dissociative anesthetics are hypothesized to act synergistically with opioid and non-opioid medications for greater potency [35].
Previous systematic reviews have analyzed specific techniques for individual orthopedic procedures, but a comprehensive overview of innovations across common surgeries is lacking.For total knee arthroplasty, reviews have focused on peripheral nerve blocks and local infiltrations, but have emphasized the need for future high-quality randomized trials [36].Reviews on multimodal analgesia for total hip arthroplasty displayed significant heterogeneity and did not firmly draw conclusions upon clear optimal regimens [37].Limitations around randomized controlled trial availability, standardized protocols, and generalizability were highlighted in reviews of shoulder arthroplasty pain management [38].Finally, a review of nerve blocks for limb trauma noted reduced opioid consumption but called for protocol refinement and encouraged other modalities like cryotherapy and TENS [39][40][41].
Despite promising results, there are gaps in the knowledge regarding optimal administration techniques, comparative efficacy between approaches, the duration of benefits, the 0impact on length of stay and total costs, and the overall advantages versus current standards of care [42,43].Widespread adoption also faces challenges around provider training, costs and reimbursements, and the development of appropriate clinical protocols [44][45][46].Poorly controlled postoperative pain after orthopedic procedures leads to impaired patient recovery and satisfaction [6,47,48].Despite the importance of optimal pain management, innovations to enhance traditional multimodal protocols have not been translated into consistent clinical adoption [49].
Therefore, the aim of this systematic review is to evaluate and synthesize data from randomized controlled trials and comparative effectiveness studies investigating novel techniques for postoperative pain management after orthopedic surgery.By analyzing high-quality studies using a broad research question, this review seeks to provide clarity on effective modalities and implementation factors essential to improving acute pain outcomes across the spectrum of orthopedic procedures.This knowledge will guide the translation of cutting-edge musculoskeletal pain management research into evidence-based protocols to improve patient outcomes after major orthopedic surgical procedures.

Search Strategy and Selection Criteria
This systematic review strictly adhered to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines, ensuring comprehensive reporting and methodological transparency [50].The research protocol, in line with the PRISMA-P (Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols) statement recommendations [51], was registered with PROSPERO (CRD42023478367).
The comprehensive search strategy involved a systematic exploration of the pertinent literature available in diverse electronic databases, including PubMed, MEDLINE, Embase, Web of Science, Cochrane Library, IEEE Xplore, and Scopus.This broad-ranging search was meticulously designed to encompass a wide array of relevant studies.To achieve this, a combination of controlled vocabulary terms, such as Medical Subject Headings (MeSH) including but not limited to "Orthopedic surgery", "Postoperative pain", "Multimodal analgesia", and "Local anesthetic infiltration", along with free-text keywords, was employed (Appendix A).The search strategy was thoughtfully crafted to ensure inclusivity while maintaining specificity, aiming to identify innovative techniques and interventions pertinent to pain management following postoperative pain after orthopedic surgery and orthopedic trauma procedures.The search was finalized on 18 September 2023, to ensure the most up-to-date and comprehensive coverage of the available literature within the specified scope.This approach aimed to gather a diverse range of scholarly works, enhancing the robustness and comprehensiveness of the review process.
After removing duplicates, articles underwent meticulous screening based on title, abstract, and full-text assessment.The inclusion criteria included studies specifically investigating novel methods for postoperative pain management following orthopedic trauma procedures.The exclusion criteria comprised studies not focused on postoperative pain management, studies not in the English language, reviews, conference abstracts, and studies without original data.Any discrepancies during the screening process were resolved through discussion and consensus between the reviewers.

Data Extraction
The primary objective of this review was to extract, synthesize, and analyze data related to innovative approaches in pain management after orthopedic surgical procedures.Data extraction emphasized key information such as study characteristics, pain management techniques, pain scores, patient outcomes, challenges in implementation, and implications for clinical practice.The authors of the included studies were contacted for additional or missing data when necessary.Any potential overlaps or duplications in patient cohorts across studies were thoroughly addressed and resolved through discussion and consultation with colleagues.
In the initial search through the databases, a total of 4521 papers were found.After removing duplicates, 531 papers were screened based on their title and abstract, with 106 being excluded.Of the remaining 216 papers, 15 were ultimately selected for the full-text review.The PRISMA flow diagram is provided in Figure 1.

Quality Assessment
The reviewer conducted a thorough evaluation of the methodological quality and risk of bias of all eligible studies.We evaluated all studies as an independent observational cohort by using a modified version of ROBVIS2 developed during the Evidence Synthesis Hackathon, This web app is built based on the ROBVIS R package [52].Discrepancies in the assessment were resolved through consensus.

1.
Narrative Synthesis: Employing a qualitative approach, this synthesis method entailed a comprehensive summary and interpretation of the included studies' findings.
Through this method, we aimed to offer a descriptive and critical synthesis, shedding light on the implications for both healthcare providers and patients.This approach allowed for a thorough examination of the various nursing interventions and their potential impact on managing postpartum depression.

2.
Thematic Analysis: Utilizing thematic analysis, we systematically identified recurring themes, patterns, and implications present across the selected studies.This rigorous process involved coding and categorizing findings related to nursing interventions.
By doing so, we aimed to delve deeper into understanding the connections, variations, and nuances within these themes.This method provided a comprehensive and indepth exploration of the effectiveness and challenges associated with diverse nursing interventions aimed at managing postpartum depression.

The Quality Assessment
The reviewer thoroughly assessed the methodological quality and risk of bias of the 15 included studies [53][54][55][56][57][58][59][60][61][62][63][64][65][66][67] using a modified ROBVIS tool (Figure 2).Overall, the studies were well conducted, with low risk of bias ratings across most domains.In terms of randomization, most studies employed robust random sequence generation and allocation concealment methods, minimizing selection bias.Bias arising from the interventions was also low, as care programs were standardized across groups.Outcome assessors were blinded in all the randomized trials, overcoming detection bias.Attrition and reporting bias were minimal, as most studies had complete outcome data and fully reported their pre-specified outcomes [53][54][55][56][57][58][59][60][61][62][63][64][65][66][67].Overall judgments took these minor uncertainties into account, but the studies were still considered to have a reasonably low risk of bias.After thorough discussion, the reviewers reached full consensus on their quality appraisal of each included study.This rigorous evaluation provides confidence that the synthesized results and conclusions of this review are based on the highest-quality available evidence on novel techniques for postoperative orthopedic pain management.

Main Outcomes
The synthesized analysis of the table (Table 1), reflecting a comprehensive array of studies on postoperative pain management in orthopedic and trauma patients, reveals several noteworthy thematic trends.Some investigations, such as the studies by Domagalska et al., (2023), Mellecker et al., (2012), and Haeseler et al., (2017) [55,56,59], have delved into the effectiveness of diverse interventions, including nerve blocks, oral medications, and non-pharmacological approaches.Comparative efficacy was observed in studies such as Janiak et al., (2023) [53], which highlighted the effectiveness of intrathecal morphine similar to single-shot femoral nerve blocks, although it was associated with a higher incidence of cumbersome side effects like nausea and pruritus.Intrathecal morphine (ITM) showed similar effectiveness in pain treatment post knee replacement as SSFNB.However, ITM was associated with a higher incidence of cumbersome side effects, primarily nausea and pruritus Moreover, studies like Morrison et al., (2016) [58] emphasized the importance of interventions in improving pain scores and patients' mobility after surgery, showing significant improvements compared to conventional analgesics.The impact on pain scores, opioid use, and adverse effects was evident across studies such as Wang et al., (2021) and Murphy et al., (2023) [67], which highlighted reductions in pain intensity and opioid consumption with interventions like music therapy and peripheral nerve blocks, thereby contributing to enhanced patient satisfaction and recovery.
A significant theme in these studies revolved around adverse effects and complications associated with interventions.For instance, Mellecker et al., (2012) [56] reported a higher incidence of severe pain and neurogenic complaints in peripheral nerve block patients.Furthermore, the thematic analysis highlighted the emphasis on functional recovery and mobility, elucidated in studies such as Elboim et al., (2019) [66], which underscored the benefit of TENS therapy in reducing pain during walking and enhancing mobility following surgical hip fracture fixation.
These studies also strived to determine optimal pain management strategies.Murphy et al., (2023) [57] proposed peripheral nerve blocks as a potential strategy to decrease healthcare costs, opioid consumption, and related complications in acute orthopedic injury, offering specific treatment guidelines for improved pain management.However, the varied findings across these studies, such as the lack of significant differences in pain intensity reported in the study by Chen et al., (2015) [64] regarding music intervention, demonstrate the complexity and diverse nature of pain management outcomes.

Discussion
This systematic review synthesized evidence from 15 studies investigating innovative modalities for managing pain after major orthopedic and trauma surgeries.Thematic analysis reveals several key implications for improving postoperative analgesia through multimodal approaches.

Nerve Blocks Effectively Reduce Pain Intensity and Opioid Consumption
Multiple randomized trials demonstrated that peripheral nerve blocks significantly improved analgesia and reduced opioid needs across total joint replacements, shoulder operations, and lower extremity trauma surgeries.Both single-shot and continuous peripheral nerve blocks resulted in markedly lower pain scores at rest and with movement in the first 2-3 postoperative days compared to conventional opioids alone.For instance, a femoral nerve block in hip fracture patients lowered pain scores by 2 points on a 10-point scale during the initial days after surgery [68,69].This substantial pain relief was accompanied by reduced cumulative opioid requirements, translating to nearly a 50% lower mean morphine equivalent dose in the first 24 h for nerve block patients compared to controls in one trial [70][71][72].The enhanced analgesia also led to fewer opioid side effects, like nausea, vomiting, and sedation [73].
The duration of benefits differed based on the nerve block technique, lasting approximately 24 h for single-shot and up to 48-72 h for continuous infusions [74,75].However, in nearly all studies, the analgesic effects of the nerve blocks persisted through the most critical postoperative period when pain is typically most severe [76].These findings indicate that peripheral nerve blocks should be strongly considered and incorporated into multimodal protocols to provide opioid-sparing analgesia in the acute phase after major orthopedic surgical procedures [77].
However, there are remaining challenges around the optimal peripheral nerve block locations, standardized anesthetic dosing and infusion protocols, and the training required to enable consistent effective utilization.Future research must address these knowledge gaps through rigorous randomized controlled trials comparing different block approaches head-to-head using standardized treatment protocols [78].

Local Anesthetic Infiltrations Provide Similar Advantages to Nerve Blocks
Multiple studies highlighted the non-inferiority of local anesthetic infiltrations in the surgical site and tissues compared to peripheral nerve blocks.Following total knee arthroplasty, local anesthetic infiltrations using ropivacaine or bupivacaine resulted in comparable reductions in pain scores at rest and with movement, postoperative opioid consumption, and functional impairment versus femoral or sciatic nerve blocks [79].
Local infiltration techniques avoid risks like nerve injury that can sometimes occur with peripheral nerve blocks.Local anesthetics can also be precisely targeted into the surgical wound without causing motor blockade that often accompanies nerve blocks [80,81].However, there are unanswered questions regarding the ideal infiltration volume, optimal medication concentration, combination of agents, and need for repeated top-up dosing.Infiltrations likely provide shorter duration analgesia compared to continuous peripheral nerve infusions.As an example, one study noted increased pain in the first 8 h after shoulder surgery with a liposomal bupivacaine infusion compared to an interscalene block [82,83].
Overall, local anesthetic infiltrations represent a potentially safer and easier alternative to nerve blocks that warrants expanded use and further research on the optimal protocols for maximal effectiveness across orthopedic operations.Head-to-head comparison trials are needed to delineate the relative advantages of each approach [84].

Multimodal Oral Analgesia Demonstrates Equivalence to Opioid-Based Regimens
A notable randomized trial highlighted similar postoperative pain control and functional outcomes with an around-the-clock oral regimen of the atypical opioid tapentadol compared to oxycodone plus naloxone following minor orthopedic procedures [59].While tapentadol was not superior to oxycodone, its non-inferiority supports the use of oral multimodal opioid-sparing analgesia as an alternative to traditional opioids for select surgical procedures and patients [85].
However, a trial of NSAIDs after total hip replacement did not show definitive advantages over placebo for pain and functional improvements [86].This underscores the need for careful patient selection and risk/benefit analysis with oral analgesic options given the potential adverse effects like gastrointestinal bleeding [87].Overall, multimodal oral analgesics do appear to be beneficial for minor procedures or as part of comprehensive regimens after major surgery.However, they likely work best alongside regional anesthesia techniques for major operations to optimize pain relief throughout the postoperative course [31,88].Additional research should explore optimal oral medication combinations and durations of use.

Adjuvant Modalities like Cryotherapy, TENS, Music Require Further Evaluation
Neuromodulatory interventions such as cryotherapy, transcutaneous electrical nerve stimulation (TENS), and music therapy had heterogeneous results in regard to the effects on postoperative pain intensity.Cryotherapy reduced pain scores and opioid consumption for the first week after total knee arthroplasty in one study [89], but methodological issues like a lack of blinding limited the strength of this result.
In a trial of hip fracture patients, TENS therapy showed no benefit for pain at rest after surgery but did significantly improve pain scores during walking and physical therapy [66].In two other studies, music therapy lowered the mean pain ratings in one trial [90], but showed no differences versus control groups in another study [91,92].The lack of consistent results emphasizes the need for further research to identify optimal protocols, timing, duration, and patient selection criteria before the wider adoption of these adjunctive modalities.
As part of multimodal analgesic regimens, these adjuncts likely provide added advantages, but more rigorous randomized trials are required to firmly establish their roles.Future research should also explore the potential synergistic benefits of combining approaches like cryotherapy and TENS.

Dexmedetomidine as an Opioid-Sparing Adjuvant Shows Promise for Expanded Use
The opioid-sparing benefits of intravenous dexmedetomidine combined with morphine were observed compared to intravenous morphine alone for pain control after spine surgery [93].The dexmedetomidine groups had significantly lower pain scores at all postoperative timepoints, presented with reduced opioid consumption by over 50%, displayed fewer side effects like nausea and vomiting, and were associated with higher satisfaction scores than morphine alone [94].
These positive results indicate that perioperative dexmedetomidine could enable notable opioid reduction across other major orthopedic operations if integrated into multimodal regimens [49].However, costs may be a barrier to more widespread implementation.Dexmedetomidine requires close hemodynamic monitoring in an intensive care setting [95].Future comparative effectiveness research should explore optimal dosing, appropriate patient selection, and head-to-head comparisons against nerve blocks and local anesthetic infusions to further define its role.

Critical Knowledge Gaps Remain around Optimal Treatment Protocols
The heterogeneity and inconsistencies across the available literature reveal crucial knowledge gaps that persist.Very few studies directly compared modalities head-to-head or evaluated combinations of multiple approaches.Data on the optimal dosing, timing, patient selection criteria, cost-effectiveness, and impact on long-term functional recovery are lacking for most interventions.
For instance, limited data exist on whether continuous peripheral nerve blocks for 48-72 h postoperatively might demonstrate superior analgesia and functional outcomes compared to single-shot techniques [96].There is also minimal evidence on combining regional anesthesia with oral medications and adjuncts.High-quality randomized controlled trials using standardized treatment protocols are imperative to establishing definitive recommendations to guide clinical practice [97,98].
Exploring potential gender-based variations in response to innovative pain management techniques represents an intriguing aspect warranting further discussion in our paper's discourse [99].Although none of the studies included in our review explicitly examined sexual dimorphism in the efficacy of interventions such as music therapy or transcutaneous electrical nerve stimulation (TENS), this notion opens an insightful avenue for exploration.Delving deeper into this facet allows us to speculate on plausible genderrelated differences in responsiveness to these techniques and their potential implications in optimizing postoperative pain management strategies.
Finally, future research must also evaluate how technological innovations like ultrasound guidance for nerve blocks and portable ambulatory infusion pumps can optimize delivery and expand access to effective pain management techniques [100].For now, individualized multimodal protocols incorporating procedure-and patient-specific factors appear most appropriate until further evidence solidifies superior standardized regimens.

Conclusions
Fifteen randomized controlled trials and comparative studies evaluating a spectrum of novel interventions were analyzed.Peripheral nerve blocks and local anesthetic infiltrations demonstrate the most consistent opioid-sparing effects and reductions in pain intensity across total joint replacements, fractures, and other orthopedic surgeries.Oral multimodal analgesia shows equivalence to opioids for select minor procedures.Adjuvant therapies like cryotherapy, transcutaneous electrical stimulation, and dexmedetomidine require optimization, but may provide added benefits.
However, significant knowledge gaps persist.Head-to-head comparisons between different modalities are lacking.Optimal protocols for peripheral blocks, infiltrations, adjuvant treatments, and combination strategies remain unclear.Patient selection criteria, cost-effectiveness, implementation barriers, and long-term functional impacts have not been firmly established.
In addition to addressing these existing evidence gaps, future research should explore the potential of other emerging non-pharmacological modalities for musculoskeletal pain management such as virtual reality.Virtual reality has shown promise in reducing neuropathic pain and could offer benefits after orthopedic surgery once protocols are developed and validated through high-quality randomized trials.As new technologies become available, continuing to investigate multidisciplinary approaches will be important for advancing perioperative care.
High-quality randomized controlled trials using standardized treatment protocols are essential to address these evidence gaps.Future research must also harness technological innovations and evaluate enhanced recovery pathways incorporating multiple complementary modalities.These priorities will enable the translation of best practices into routine clinical care, advancing postoperative orthopedic pain management.

Appendix A
Database Search Terms.The table outlines the search terms employed across various databases (PubMed, MEDLINE, Embase, Web of Science, Cochrane Library, IEEE Xplore, Scopus) to explore postoperative pain management in orthopedic procedures.The search strings encompass keywords and phrases related to postoperative pain, orthopedic surgeries, and pain management strategies, facilitating comprehensive literature retrieval in the respective databases.

Figure 2 .
Figure 2. Summary of risk of bias [53-67].A few concerns were noted for individual studies.The randomization process was unclear in Karaduman et al., Elmansy et al., and Janiak et al.Attrition bias due to missing outcome data was somewhat questionable in Mellecker et al. and Chen et al.Outcome measurement had some risk of bias in Mellecker et al. and Elmansy et al. as the assessment was not blinded.Overall judgments took these minor uncertainties into account, but the studies were still considered to have a reasonably low risk of bias.After thorough discussion, the reviewers reached full consensus on their quality appraisal of each included study.This rigorous evaluation provides confidence that the synthesized results and conclusions of this review are based on the highest-quality available evidence on novel techniques for postoperative orthopedic pain management.
Pain"[Mesh] OR postoperat* OR post-operat*) AND ("Orthopedic Procedures, Operative"[Mesh] OR orthoped* OR musculoskel* OR "extremity fracture*" OR fracture* OR limb OR limbs OR bone OR bones OR joint OR joints OR arthro* OR chondro* OR osteoto*) AND ("Pain Management"[Mesh] OR analgesi* OR anesthetic* OR anaesthetic* OR "pain control" OR "perioperative care" OR "postoperative care") AND (technique* OR method* OR modalit* OR strateg* OR intervent* OR approach* OR manag* OR control*) MEDLINE Same as PubMed Embase 'postoperative pain'/exp OR postoperat* OR post-operat* AND 'orthopedic procedure'/exp OR orthoped* OR musculoskel* OR 'extremity fracture' OR fracture* OR limb OR limbs OR bone OR bones OR joint OR joints OR arthro* OR chondro* OR osteoto* AND 'pain management'/exp OR analgesi* OR anesthetic* OR anaesthetic* OR 'pain control' OR 'perioperative care' OR 'postoperative care' AND techniqu* OR method* OR modalit* OR strateg* OR intervent* OR approach* OR manag* OR control* Web of Science TS = (postoperative pain OR postoperat* OR post-operat*) AND TS = (orthopedic procedure* OR orthoped* OR musculoskel* OR "extremity fracture*" OR fracture* OR limb OR limbs OR bone OR bones OR joint OR joints OR arthro* OR chondro* OR osteoto*) AND TS = (pain management OR analgesi* OR anesthetic* OR anaesthetic* OR "pain control" OR "perioperative care" OR "postoperative care") AND TS = (technique* OR method* OR modalit* OR strateg* OR intervent* OR approach* OR manag* OR control*) post-operat* AND orthoped* or musculoskel* or "extremity fracture*" or fracture* or limb or limbs or bone or bones or joint or joints or arthro* or chondro* or osteoto* AND analgesi* or "pain management" or anesthetic* or anaesthetic* or "pain control" or "perioperative care" or "postoperative care" AND techniqu* or method* or modalit* or strateg* or intervent* or approach* or manag* or control* IEEE Xplore postoperat* or post-operat* AND orthoped* or musculoskel* or "extremity fracture*" or fracture* or limb or limbs or bone or bones or joint or joints or arthro* or chondro* or osteoto* AND analgesi* or "pain management" or anesthetic* or anaesthetic* or "pain control" or "perioperative care" or "postoperative care" AND techniqu* or method* or modalit* or strateg* or intervent* or approach* or manag* or control* Scopus postoperat* or post-operat* AND orthoped* or musculoskel* or "extremity fracture*" or fracture* or limb or limbs or bone or bones or joint or joints or arthro* or chondro* or osteoto* AND analgesi* or "pain management" or anesthetic* or anaesthetic* or "pain control" or "perioperative care" or "postoperative care" AND techniqu* or method* or modalit* or strateg* or intervent* or approach* or manag* or control*

Table 1 .
Extraction table of included studies.